.\" RCSid "$Id: protate.1,v 1.2 2003/12/09 15:59:06 greg Exp $"
.TH PROTATE 1 10/27/98 RADIANCE
.SH NAME
protate - rotate a RADIANCE picture.
.SH SYNOPSIS
.B protate
[
.B \-c
][
.B \-r
]
.B input
[
.B output
]
.SH DESCRIPTION
.I Protate
rotates a RADIANCE picture 90 degrees.
This is useful for output on hardcopy devices with aspect ratios opposite
to the input picture.
By default, the image is rotated clockwise.
The
.I \-r
option may be used to rotate the image counter-clockwise instead.
.PP
The
.I \-c
option indicates that the action is to correct an improper original
image orientation, thus the recorded scanline ordering should not
be changed.
.SH NOTES
To rotate an image 180 degrees, use
.I pflip(1)
with both the
.I -h
and
.I -v
options.
.SH AUTHOR
Greg Ward
.SH "SEE ALSO"
getinfo(1), pcompos(1), pfilt(1), pflip(1), psign(1), rpict(1)
